NSR Query Results

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NSR database version of April 11, 2024.

Search: Author = L.K.Peker

Found 153 matches.

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2001HW01      J.Phys.(London) G27, L9 (2001)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.D.Cole, I.Y.Lee, J.O.Rasmussen, R.Donangelo, and the GANDS95 Collaboration

Possible Semidecoupled Bands in ¹⁰²Nb

NUCLEAR STRUCTURE ¹⁰²Nb; analyzed rotational bands levels, J, π; deduced semi-decoupled configuration.

doi: 10.1088/0954-3899/27/1/102
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2000HW03      Phys.Rev. C62, 044303 (2000), Erratum Phys.Rev. C 103, 059901 (2021)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, E.F.Jones, P.M.Gore, S.J.Zhu, C.J.Beyer, J.Kormicki, X.Q.Zhang, L.K.Peker, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, I.Y.Lee, J.D.Cole, R.Aryaeinejad, M.W.Drigert, M.A.Stoyer, S.G.Prussin, R.Donangelo, H.C.Griffin

Possible Octupole Correlation in ¹⁴⁷Pr and πh_11/2 Bands in ^{149, 151}Pr

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin following fission. ^147,149,151Pr deduced high-spin levels, J, π, configurations. ¹⁴⁷Pr deduced possible octupole correlations. Level structures and gamma rays in ¹⁴⁷Pr and ¹⁵¹Pr nuclei reassigned by authors to ¹⁴⁴La and ¹⁵⁰Pr, respectively, in their papers 2009Lu04 for ¹⁴⁴La and 2015Wa28 for ¹⁵⁰Pr. Gammasphere array.

doi: 10.1103/PhysRevC.62.044303
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1999BU32      J.Phys.(London) G25, 2253 (1999)

K.Butler-Moore, R.Aryaeinejad, X.Q.Zhang, B.R.S.Babu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, V.E.Oberacker, S.J.Zhu, J.Kormicki, L.K.Peker, J.D.Cole, Y.X.Dardenne, W.C.Ma, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.O.Rasmussen, R.W.Lougheed, K.J.Moody, M.A.Stoyer, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, J.Kliman, M.Morhac

High-Spin States in Neutron-Rich Even-Even Pd Isotopes

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^112,114,116Pd deduced high-spin levels, J, π, configurations. Gammasphere array. IBA calculations, level systematics in Pd isotopes discussed.

Data from this article have been entered in the XUNDL database. For more information, click here.

1999HA10      Acta Phys.Slovaca 49, 31 (1999)

J.H.Hamilton, A.V.Ramayya, J.K.Hwang, W.Greiner, S.J.Zhu, A.Sandulescu, A.Florescu, J.Kormicki, G.Ter-Akopian, Y.Oganesyan, A.V.Daniel, G.S.Popeko, J.Kliman, M.Morhac, J.D.Cole, R.Aryaeinejad, M.W.Drigert, W.E.Collins, W.C.Ma, E.F.Jones, L.K.Peker, P.M.Gore, G.Drafta, B.R.S.Babu, G.Wang, J.K.Deng

Cold Spontaneous Fission Processes of ²⁵²Cf and the Structure of Neutron Rich Ba and La Nuclei

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin; deduced cold binary, ternary fission yields. ^143,144,146Ba, ^145,147La deduced high-spin levels, J, π, stable octupole deformation.

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13749.

1999ZH05      Phys.Rev. C59, 1316 (1999)

S.J.Zhu, J.H.Hamilton, A.V.Ramayya, M.G.Wang, J.K.Hwang, E.F.Jones, L.K.Peker, B.R.S.Babu, G.Drafta, W.C.Ma, G.L.Long, L.Y.Zhu, M.Li, C.Y.Gan, T.N.Ginter, J.Kormicki, J.K.Deng, D.T.Shi, W.E.Collins, J.D.Cole, R.Aryaeinejad, M.W.Drigert, J.O.Rasmussen, R.Donangelo, J.Gilat, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian

Octupole Correlations in Neutron-Rich ^{145, 147}La Nuclei: Coriolis-limit-coupling bands with aligned h_11/2 Proton

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^145,147La deduced high-spin levels, possible J, π, B(E1)/B(E2), octupole correlations. Cranked shell model analysis. Gammasphere array.

doi: 10.1103/PhysRevC.59.1316
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1999ZH31      Phys.Rev. C60, 051304 (1999)

S.J.Zhu, J.H.Hamilton, A.V.Ramayya, E.F.Jones, J.K.Hwang, M.G.Wang, X.Q.Zhang, P.M.Gore, L.K.Peker, G.Drafta, B.R.S.Babu, W.C.Ma, G.L.Long, L.Y.Zhu, C.Y.Gan, L.M.Yang, M.Sakhaee, M.Li, J.K.Deng, T.N.Ginter, C.J.Beyer, J.Kormicki, J.D.Cole, R.Aryaeinejad, M.W.Drigert, J.O.Rasmussen, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian, R.Donangelo, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, S.G.Prussin, J.Kliman, H.C.Griffin

Octupole Correlations in Neutron-Rich ^{143, 145}Ba and a Type of Superdeformed Band in ¹⁴⁵Ba

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^143,145Ba deduced high-spin levels, J, π, B(E1)/B(E2), possible stable octupole deformation. Gammasphere array.

doi: 10.1103/PhysRevC.60.051304
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1998HW02      J.Phys.(London) G24, L9 (1998)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo

Close Doublet Structures in ¹⁰³Mo, ^109,111Ru, and Neighbours: Rotation-alignment for the half-filled h_11/2 subshell ( Question )

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^103,105Mo, ^109,111Ru deduced levels, band structure, possible J, π, configurations, evidence for rotation alignment. Comparison with other nuclei.

doi: 10.1088/0954-3899/24/5/009
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1998HW04      Phys.Rev. C57, 2250 (1998); Erratum Phys.Rev. C58, 3013 (1998)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, J.O.Rasmussen, J.Gilat, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo, S.J.Zhu

Identification of the γ Transitions in Tc and Cs Products of ²⁵²Cf Fission and Possible (7/2)⁺ [413] Bands in ^105-109Tc Isotopes

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ¹⁰⁵Tc deduced high-spin levels, J, π, rotational bands. ^{106,107,108,109}Tc deduced levels, possible J, π. ^{139,140,141,142,143}Cs deduced levels.

doi: 10.1103/PhysRevC.57.2250
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1998HW08      Phys.Rev. C58, 3252 (1998)

J.K.Hwang, A.V.Ramayya, J.Gilat, J.H.Hamilton, L.K.Peker, J.O.Rasmussen, J.Kormicki, T.N.Ginter, B.R.S.Babu, C.J.Beyer, E.F.Jones, R.Donangelo, S.J.Zhu, H.C.Griffin, G.M.Ter-Akopyan, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, M.W.Drigert, M.A.Stoyer

Rotational Bands in ^101-103Nb and ^{98, 100}Y Nuclei and Identification of Yrast Bands in ¹⁴⁶La and ¹⁴⁹Pr

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^101,102,103Nb, ^98,100Y, ¹⁴⁶La, ¹⁴⁹Pr deduced levels J, π, configurations, rotational bands properties. Pairing-free bands, collective model. Gammasphere.

doi: 10.1103/PhysRevC.58.3252
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1998RA09      Phys.Rev. C57, 2370 (1998)

A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo

Cold (Neutronless) α Ternary Fission of ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin; deduced α-associated ternary fission isotopic yields.

doi: 10.1103/PhysRevC.57.2370
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13698.

1998ZH12      Phys.Rev. C57, 2040 (1998); Erratum Phys.Rev. C58, 3012 (1998)

X.Q.Zhang, J.H.Hamilton, A.V.Ramayya, L.K.Peker, J.K.Hwang, E.F.Jones, J.Kormicki, C.J.Beyer, P.M.Gore, B.R.S.Babu, T.N.Ginter, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.Gilat, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin, S.J.Zhu

Identification of New Negative-Parity Levels in ^152,154Nd

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^152,154Nd deduced high-spin levels, J, π, negative-parity bands.

doi: 10.1103/PhysRevC.57.2040
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1997HW02      Int.J.Mod.Phys. E6, 331 (1997)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, J.Kormicki, L.K.Peker, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin

Identification of the ν_3/2-[521] Band in ¹⁵³Nd and the γ-Transitions in ¹⁴⁹Nd

RADIOACTIVITY ²⁵²Cf(SF); measured γγ-coin; deduced E2 transition energies in N=93 isotones, N=89 isotones Eγ. ¹⁴⁹Nd deduced high-spin level associated transitions. ¹⁵³Nd deduced high-spin levels, band structure, signature splitting related features, moment of inertia. Other data input.

doi: 10.1142/S0218301397000226
Citations: PlumX Metrics

1997HW03      Phys.Rev. C56, 1344 (1997)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, Y.X.Dardenne, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo

Identification of ¹⁰⁹Mo and Possible Octupole Correlations in ^107,109Mo

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^107,109Mo deduced high-spin levels, J, π, B(E1)/B(E2), configurations, octupole deformation.

doi: 10.1103/PhysRevC.56.1344
Citations: PlumX Metrics

1997PE22      Nucl.Data Sheets 82, 187 (1997)

L.K.Peker, J.K.Tuli

Nuclear Data Sheets for A = 146

COMPILATION ¹⁴⁶Xe, ¹⁴⁶Cs, ¹⁴⁶Ba, ¹⁴⁶La, ¹⁴⁶Ce, ¹⁴⁶Pr, ¹⁴⁶Nd, ¹⁴⁶Pm, ¹⁴⁶Sm, ¹⁴⁶Eu, ¹⁴⁶Gd, ¹⁴⁶Tb, ¹⁴⁶Dy, ¹⁴⁶Ho, ¹⁴⁶Er, ¹⁴⁶Tm; compiled, evaluated structure data.

doi: 10.1006/ndsh.1997.0020
Citations: PlumX Metrics

1997RA39      Nuovo Cim. 110A, 1073 (1997)

A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.MacLeod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo

Cold Binary and Ternary Fragmentations in Spontaneous Fission of ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin; deduced fragment isotopic yields, binary, α-associated ternary events features.

doi: 10.1007/BF03035948
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13698.

1996BA34      Phys.Rev. C54, 568 (1996)

B.R.S.Babu, S.J.Zhu, A.V.Ramayya, J.H.Hamilton, L.K.Peker, M.G.Wang, T.N.Ginter, J.Kormicki, W.C.Ma, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.O.Rasmussen, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Prussin, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild

Identification of γ Transitions in ¹⁴⁷Ba, ¹⁴⁹Ce, and ^151,153Nd

RADIOACTIVITY ²⁵²Cf(SF); measured γγγ-, γ(X-ray)-, γγ(X-ray)-, γγ-coin. ¹⁴⁷Ba, ^151,153Nd, ¹⁴⁹Ce deduced high-spin levels, J, π, configuration, band structure.

doi: 10.1103/PhysRevC.54.568
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1996HA27      Phys.Rep. 264, 215 (1996)

J.H.Hamilton, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.Kormicki, S.J.Zhu, M.G.Wang, Q.Lu, K.Butler-Moore, A.V.Ramayya, W.C.Ma, B.R.S.Babu, D.Shi, J.K.Deng, G.S.Popeko, A.V.Daniel, W.Greiner, A.Sandulescu, J.D.Cole, R.Aryaeinejad, J.Kliman, V.Polhorsky, M.Morhac, N.R.Johnson, I.Y.Lee, F.K.McGowan, L.K.Peker

Structure of Neutron-Rich Nuclei and Neutron Multiplicities in Spontaneous Fission

RADIOACTIVITY ²⁵²Cf(SF); compiled, reviewed γγ-, γγγ-coin data. ^{140,143,145,147}Ba, ¹³⁶Te, ¹³⁸Xe deduced high-spin levels. Other nuclei included.

doi: 10.1016/0370-1573(95)00039-9
Citations: PlumX Metrics

1995LU10      Phys.Rev. C52, 1348 (1995)

Q.H.Lu, K.Butler-Moore, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, V.E.Oberacker, W.C.Ma, B.R.S.Babu, J.K.Deng, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.X.Dardenne, M.Drigert, L.K.Peker, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.M.Nitschke, N.R.Johnson, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.B.Gupta

Structure of ^108,110,112Ru: Identical bands in ^108,110Ru

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-, γγγ-, (X-ray)γ-coin. ^108,110,112Ru deduced levels, J, π, intraband B(E2) ratios. Rotation-vibration, rigid triaxial rotor calculation.

doi: 10.1103/PhysRevC.52.1348
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1995ZH34      Phys.Lett. 357B, 273 (1995)

S.J.Zhu, Q.H.Lu, J.H.Hamilton, A.V.Ramayya, L.K.Peker, M.G.Wang, W.C.Ma, B.R.S.Babu, T.N.Ginter, J.Kormicki, D.Shi, J.K.Deng, W.Nazarewicz, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Asztalos, S.G.Prussin, J.D.Cole, R.Aryaeinejad, Y.K.Dardenne, M.Drigert, K.J.Moody, R.W.Lougheed, J.F.Wild, N.R.Johnson, I.Y.Lee, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian

Octupole Deformation in ^142,143Ba and ¹⁴⁴Ce: New band structures in neutron-rich Ba-isotopes

RADIOACTIVITY ²⁵²Cf(SF); ²⁴²Pu(SF); measured γγ-, γγγ-coin following fission fragment decay. ^{142,143,144,145,146,147}Ba, ¹⁴⁴Ce deduced high-spin levels, J, π, band structure, shape features, B(λ) in some cases.

doi: 10.1016/0370-2693(95)00900-6
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1994PE15      Nucl.Data Sheets 73, 1 (1994)

L.K.Peker

Nuclear Data Sheets Update for A = 99

COMPILATION ⁹⁹Rb, ⁹⁹Sr, ⁹⁹Y, ⁹⁹Zr, ⁹⁹Nb, ⁹⁰Mo, ⁹⁹Tc, ⁹⁹Ru, ⁹⁹Rh, ⁹⁹Pd, ⁹⁹Ag, ⁹⁹Cd; compiled, evaluated structure data.

doi: 10.1006/ndsh.1994.1039
Citations: PlumX Metrics

1994PE19      Nucl.Data Sheets 73, 261 (1994)

L.K.Peker

Nuclear Data Sheets Update for A = 140

COMPILATION ¹⁴⁰I, ¹⁴⁰Xe, ¹⁴⁰Cs, ¹⁴⁰Ba, ¹⁴⁰La, ¹⁴⁰Ce, ¹⁴⁰Pr, ¹⁴⁰Nd, ¹⁴⁰Pm, ¹⁴⁰Sm, ¹⁴⁰Eu, ¹⁴⁰Gd, ¹⁴⁰Tb; compiled, evaluated structure data.

doi: 10.1006/ndsh.1994.1044
Citations: PlumX Metrics

1993PE01      Nucl.Data Sheets 68, 165 (1993); 1993Pe02

L.K.Peker

Nuclear Data Sheets Update for A = 96

doi: 10.1006/ndsh.1993.1006
Citations: PlumX Metrics

1993PE02      Nucl.Data Sheets 68, 165 (1993)

L.K.Peker

Nuclear Data Sheets Update for A = 96

COMPILATION ⁹⁶Rb, ⁹⁶Sr, ⁹⁶Y, ⁹⁶Zr, ⁹⁶Nb, ⁹⁶Mo, ⁹⁶Tc, ⁹⁶Ru, ⁹⁶Rh, ⁹⁶Pd, ⁹⁶Ag; compiled, evaluated structure data.

doi: 10.1006/ndsh.1993.1006
Citations: PlumX Metrics

1993PE06      Nucl.Data Sheets 68, 271 (1993)

L.K.Peker

Nuclear Data Sheets Update for A = 46

COMPILATION ⁴⁶Ar, ⁴⁶K, ⁴⁶Ca, ⁴⁶Sc, ⁴⁶Ti, ⁴⁶V, ⁴⁶Cr, ⁴⁶Mn; compiled, evaluated structure data.

doi: 10.1006/ndsh.1993.1009
Citations: PlumX Metrics

1993PE07      Nucl.Data Sheets 68, 997 (1993)

L.K.Peker

Nuclear Data Sheets Update for A = 145

COMPILATION ¹⁴⁵Cs, ¹⁴⁵Ba, ¹⁴⁵La, ¹⁴⁵Ce, ¹⁴⁵Pr, ¹⁴⁵Nd, ¹⁴⁵Pm, ¹⁴⁵Eu, ¹⁴⁵Gd, ¹⁴⁵Tb, ¹⁴⁵Dy, ¹⁴⁵Ho, ¹⁴⁵Er; compiled, evaluated structure data.

doi: 10.1006/ndsh.1993.1021
Citations: PlumX Metrics

1992DE38      Nucl.Data Sheets 66, 705 (1992)

E.der Mateosian, L.K.Peker

Nuclear Data Sheets for A = 147

COMPILATION ¹⁴⁷Cs, ¹⁴⁷Ba, ¹⁴⁷La, ¹⁴⁷Ce, ¹⁴⁷Pr, ¹⁴⁷Nd, ¹⁴⁷Pm, ¹⁴⁷Sm, ¹⁴⁷Eu, ¹⁴⁷Gd, ¹⁴⁷Tb, ¹⁴⁷Dy, ¹⁴⁷Ho, ¹⁴⁷Er, ¹⁴⁷Tm; compiled, evaluated structure data.

doi: 10.1016/0090-3752(92)80081-T
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1992PE04      Nucl.Data Sheets 65, 439 (1992)

L.K.Peker

Nuclear Data Sheets Update for A = 165

COMPILATION ¹⁶⁵Tb, ¹⁶⁵Dy, ¹⁶⁵Ho, ¹⁶⁵Er, ¹⁶⁵Tm, ¹⁶⁵Yb, ¹⁶⁵Lu, ¹⁶⁵Hf, ¹⁶⁵Ta, ¹⁶⁵W, ¹⁶⁵Re, ¹⁶⁵Os; compiled, evaluated structure data.

doi: 10.1016/0090-3752(92)80045-L
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1992ZH42      Rev.Mex.Fis. 38, 53 (1992)

S.Zhu, X.Zhao, J.H.Hamilton, A.V.Ramayya, Q.Lu, W.-C.Ma, L.K.Peker, J.Kormicki, H.Xie, W.B.Gao, J.K.Deng, I.Y.Lee, N.R.Johnson, F.K.McGowan, C.E.Bemis, J.D.Cole, R.Aryaeinejad, G.M.Ter-Akopian, Yu.Ts.Oganessian

Higher Spin States in Neutron Rich Nuclei

1991PE05      Nucl.Data Sheets 63, 573 (1991)

L.K.Peker

Nuclear Data Sheets Update for A = 141

COMPILATION ¹⁴¹I, ¹⁴¹Xe, ¹⁴¹Cs, ¹⁴¹Ba, ¹⁴¹La, ¹⁴¹Ce, ¹⁴¹Pr, ¹⁴¹Nd, ¹⁴¹Pm, ¹⁴¹Sm, ¹⁴¹Eu, ¹⁴¹Gd, ¹⁴¹Tb, ¹⁴¹Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80010-9
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1991PE06      Nucl.Data Sheets 63, 647 (1991)

L.K.Peker

Nuclear Data Sheets Update for A = 142

COMPILATION ¹⁴²Xe, ¹⁴²Cs, ¹⁴²Ba, ¹⁴²La, ¹⁴²Ce, ¹⁴²Pr, ¹⁴²Nd, ¹⁴²Pm, ¹⁴²Sm, ¹⁴²Eu, ¹⁴²Gd, ¹⁴²Tb, ¹⁴²Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80011-0
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1991PE11      Nucl.Data Sheets 64, 429 (1991)

L.K.Peker

Nuclear Data Sheets Update for A = 143

COMPILATION ¹⁴³Xe, ¹⁴³Cs, ¹⁴³Ba, ¹⁴³La, ¹⁴³Ce, ¹⁴³Pr, ¹⁴³Nd, ¹⁴³Pm, ¹⁴³Sm, ¹⁴³Eu, ¹⁴³Gd, ¹⁴³Tb; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80017-1
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1990PE01      Nucl.Data Sheets 59, 393 (1990)

L.K.Peker

Nuclear Data Sheets for A = 148

COMPILATION ¹⁴⁸Cs, ¹⁴⁸Ba, ¹⁴⁸La, ¹⁴⁸Ce, ¹⁴⁸Pr, ¹⁴⁸Nd, ¹⁴⁸Pm, ¹⁴⁸Sm, ¹⁴⁸Eu, ¹⁴⁸Gd, ¹⁴⁸Tb, ¹⁴⁸Dy, ¹⁴⁸Ho, ¹⁴⁸Er, ¹⁴⁸Tm; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80095-X
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1990PE02      Nucl.Data Sheets 59, 767 (1990)

L.K.Peker

Nuclear Data Sheets for A = 137

COMPILATION ¹³⁷Te, ¹³⁷I, ¹³⁷Xe, ¹³⁷Cs, ¹³⁷Ba, ¹³⁷La, ¹³⁷Ce, ¹³⁷Pr, ¹³⁷Nd, ¹³⁷Pm, ¹³⁷Sm, ¹³⁷Eu, ¹³⁷Gd; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80123-1
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1990PE06      Nucl.Data Sheets 60, 953 (1990)

L.K.Peker

Nuclear Data Sheets Update for A = 146

COMPILATION ¹⁴⁶Xe, ¹⁴⁶Cs, ¹⁴⁶Ba, ¹⁴⁶La, ¹⁴⁶Ce, ¹⁴⁶Pr, ¹⁴⁶Nd, ¹⁴⁶Pm, ¹⁴⁶Sm, ¹⁴⁶Eu, ¹⁴⁶Gd, ¹⁴⁶Tb, ¹⁴⁶Dy, ¹⁴⁶Ho; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80111-5
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1990PE09      Nucl.Data Sheets 61, 189 (1990)

L.K.Peker

Nuclear Data Sheets Update for A = 58

COMPILATION ⁵⁸Cr, ⁵⁸Mn, ⁵⁸Fe, ⁵⁸Co, ⁵⁸Ni, ⁵⁸Cu, ⁵⁸Zn; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80116-4
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1989PE11      Nucl.Data Sheets 58, 93 (1989)

L.K.Peker

Nuclear Data Sheets for A = 152

COMPILATION ¹⁵²Pr, ¹⁵²Nd, ¹⁵²Pm, ¹⁵²Sm, ¹⁵²Eu, ¹⁵²Gd, ¹⁵²Tb, ¹⁵²Dy, ¹⁵²Ho, ¹⁵²Er, ¹⁵²Tm, ¹⁵²Yb, ¹⁵²Lu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(89)80018-3
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1988PE03      Nucl.Data Sheets 53, 177 (1988)

L.K.Peker

Nuclear Data Sheets Update for A = 138

COMPILATION ¹³⁸Te, ¹³⁸I, ¹³⁸Xe, ¹³⁸Cs, ¹³⁸Ba, ¹³⁸La, ¹³⁸Ce, ¹³⁸Pr, ¹³⁸Nd, ¹³⁸Pm, ¹³⁸Sm, ¹³⁸Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(88)80090-5
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1987HA23      Fizika(Zagreb) 19, Supplement 1, 31 (1987)

J.H.Hamilton, L.K.Peker

Possible Collapse of Pairing at Low Spins in the A = 100 Region

NUCLEAR STRUCTURE ^98,99Y; analyzed band structure; deduced possible pairing collapse.

1987PE01      Nucl.Data Sheets 50, 137 (1987)

L.K.Peker

Nuclear Data Sheets for A = 165

COMPILATION ¹⁶⁵Tb, ¹⁶⁵Dy, ¹⁶⁵Ho, ¹⁶⁵Er, ¹⁶⁵Tm, ¹⁶⁵Yb, ¹⁶⁵Lu, ¹⁶⁵Hf, ¹⁶⁵Ta, ¹⁶⁵W, ¹⁶⁵Re, ¹⁶⁵Os; compiled, evaluated nuclear structure data.

doi: 10.1016/S0090-3752(87)80094-7
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1987PE07      Nucl.Data Sheets 51, 425 (1987)

L.K.Peker

Nuclear Data Sheets for A = 140

COMPILATION ¹⁴⁰I, ¹⁴⁰Xe, ¹⁴⁰Cs, ¹⁴⁰Ba, ¹⁴⁰La, ¹⁴⁰Ce, ¹⁴⁰Pr, ¹⁴⁰Nd, ¹⁴⁰Pm, ¹⁴⁰Sm, ¹⁴⁰Eu, ¹⁴⁰Gd; compiled, evaluated structure data.

1986BE31      J.Phys.(London) G12, L223 (1986)

R.Bengtsson, J.-Y.Zhang, J.H.Hamilton, L.K.Peker

Potential Energy Surface Calculations of Nuclear Shape Transitions and Shape Coexistence in ^176,178,180Pt

NUCLEAR STRUCTURE ^176,178,180Pt; calculated potential energy surfaces, yrast state transition energy vs spin.

doi: 10.1088/0305-4616/12/3/010
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1986MI10      Phys.Rev. C33, 2159 (1986)

S.Mirzadeh, Y.Y.Chu, S.Katcoff, L.K.Peker

Decay of 7.3-min ²³⁵Th and 24.6-min ²³⁵Pa

RADIOACTIVITY ²³⁵Th(β^-); ²³⁵Pa(β^-) [from ²³⁵Th(β-decay)]; measured Eγ, Iγ, T_1/2. ²³⁵Th deduced Iβ, log ft. ²³⁵Pa deduced levels, J, π, γ-branching, anomalous β-branching retardation.

doi: 10.1103/PhysRevC.33.2159
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1986PE02      Phys.Lett. 167B, 283 (1986)

L.K.Peker, J.H.Hamilton, P.G.Hansen

On the Possible Total Collapse of the Pairing in the Isomeric I(π) = (7/2)⁺ States of Odd-A ₄₅Rh and ₄₇Ag Nuclei

NUCLEAR STRUCTURE ¹⁰³Rh, ^103,109Ag; calculated level, EC-decay log ft, g. ¹⁰⁵Rh; calculated level, g. ^105,107Ag; calculated level, EC-decay log ft.

doi: 10.1016/0370-2693(86)90346-1
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1986PE04      Phys.Lett. 169B, 323 (1986)

L.K.Peker, F.K.Wohn, J.C.Hill, R.F.Petry

Observations of ' Pairing-Free ' K(π)=1⁺ Rotational Bands in Deformed Odd-Odd A ≈ 100 Nuclei

RADIOACTIVITY ^100,102Sr, ^102,104Zr(β^-); analyzed β-decay data. ^100,102Y, ^102,104Nb deduced rotational bands, K, π, moment of inertia, deformation.

doi: 10.1016/0370-2693(86)90365-5
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1986PE07      Nucl.Data Sheets 48, 753 (1986)

L.K.Peker

Nuclear Data Sheets for A = 143

COMPILATION ¹⁴³Xe, ¹⁴³Cs, ¹⁴³Ba, ¹⁴³La, ¹⁴³Ce, ¹⁴³Pr, ¹⁴³Nd, ¹⁴³Pm, ¹⁴³Sm, ¹⁴³Eu, ¹⁴³Gd, ¹⁴³Tb; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(86)80107-7
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1986PE09      Nucl.Data Sheets 49, 1 (1986)

L.K.Peker

Nuclear Data Sheets for A = 145

COMPILATION ¹⁴⁵Cs, ¹⁴⁵Ba, ¹⁴⁵La, ¹⁴⁵Ce, ¹⁴⁵Pr, ¹⁴⁵Nd, ¹⁴⁵Pm, ¹⁴⁵Sm, ¹⁴⁵Eu, ¹⁴⁵Gd, ¹⁴⁵Tb, ¹⁴⁵Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(86)80033-3
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1985PE08      Nucl.Data Sheets 45, 1 (1985)

L.K.Peker

Nuclear Data Sheets for A = 141

COMPILATION ¹⁴¹I, ¹⁴¹Xe, ¹⁴¹Cs, ¹⁴¹Ba, ¹⁴¹La, ¹⁴¹Ce, ¹⁴¹Pr, ¹⁴¹Nd, ¹⁴¹Pm, ¹⁴¹Sm, ¹⁴¹Eu, ¹⁴¹Gd, ¹⁴¹Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(85)80022-3
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1984FI07      Nucl.Phys. A422, 215 (1984)

C.A.Fields, K.H.Hicks, R.A.Ristinen, F.W.N.De Boer, L.K.Peker, R.J.Peterson, P.M.Walker

Rotational Side-Bands in ¹⁶⁴Er

NUCLEAR REACTIONS ¹⁶²Dy(α, 2n), E=24 MeV; measured Eγ, Iγ(θ), γγ-coin. ¹⁶⁵Ho(p, 2n), E=23 MeV; measured Eγ, Iγ(θ, t), γγ-coin. ¹⁶⁴Er deduced levels, J, ICC, π, K, bandhead configurations, mixing strengths. Enriched targets, Ge(Li) and hyperpure Ge detectors, mini-orange spectrometer. Two-band mixing analysis.

doi: 10.1016/0375-9474(84)90515-3
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1984MI02      Phys.Rev. C29, 985 (1984)

S.Mirzadeh, Y.Y.Chu, S.Katcoff, L.K.Peker

Decay of 37.5-min ²³⁶Th and 9.1-min ²³⁶Pa

RADIOACTIVITY ²³⁶Th, ²³⁶Pa(β^-); measured Eγ, Iγ; deduced T_1/2, Iβ, log ft. ²³⁶Pa, ²³⁶U deduced levels, J, π, K, γ-branching, configuration. Continuous separation technique.

doi: 10.1103/PhysRevC.29.985
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1984PE01      Phys.Rev. C29, 271 (1984)

L.K.Peker, S.Pearlstein, J.O.Rasmussen, J.H.Hamilton

Strength of Coriolis Alignment in Actinide Nuclei

NUCLEAR STRUCTURE ²²⁶Ra, ²³²Th, ^{232,234,236,235,238}U, ²³⁷Np; analyzed intraband level energies; deduced Coriolis alignment strength.

doi: 10.1103/PhysRevC.29.271
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1984PE10      Nucl.Data Sheets 41, 195 (1984)

L.K.Peker

Nuclear Data Sheets for A = 146

COMPILATION ¹⁴⁶Cs, ¹⁴⁶Ba, ¹⁴⁶La, ¹⁴⁶Ce, ¹⁴⁶Pr, ¹⁴⁶Nd, ¹⁴⁶Pm, ¹⁴⁶Sm, ¹⁴⁶Eu, ¹⁴⁶Gd, ¹⁴⁶Tb, ¹⁴⁶Dy, ¹⁴⁶Ho; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80086-1
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1984PE14      Nucl.Data Sheets 42, 111 (1984)

L.K.Peker

Nuclear Data Sheets for A = 148

COMPILATION ¹⁴⁸Cs, ¹⁴⁸Ba, ¹⁴⁸La, ¹⁴⁸Ce, ¹⁴⁸Pr, ¹⁴⁸Nd, ¹⁴⁸Pm, ¹⁴⁸Sm, ¹⁴⁸Eu, ¹⁴⁸Gd, ¹⁴⁸Tb; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80093-9
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1984PE16      Nucl.Data Sheets 42, 457 (1984)

L.K.Peker

Nuclear Data Sheets for A = 58

COMPILATION ⁵⁸Mn, ⁵⁸Fe, ⁵⁸Co, ⁵⁸Ni, ⁵⁸Cu, ⁵⁸Zn; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80104-0
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1984PE20      Nucl.Data Sheets 43, 481 (1984)

L.K.Peker

Nuclear Data Sheets for A = 53

COMPILATION ⁵³K, ⁵³Ca, ⁵³Ti, ⁵³V, ⁵³Cr, ⁵³Mn, ⁵³Fe, ⁵³Co, ⁵³Ni; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80067-8
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1984PE21      Nucl.Data Sheets 43, 579 (1984)

L.K.Peker

Nuclear Data Sheets for A = 142

COMPILATION ¹⁴²Xe, ¹⁴²Cs, ¹⁴²Ba, ¹⁴²La, ¹⁴²Ce, ¹⁴²Pr, ¹⁴²Nd, ¹⁴²Pm, ¹⁴²Sm, ¹⁴²Eu, ¹⁴²Gd; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80068-X
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1983PE05      Phys.Rev.Lett. 50, 1749 (1983)

L.K.Peker, S.Pearlstein, J.O.Rasmussen, J.H.Hamilton

Unexpected Properties of the Negative-Parity Bands in ^236,238U, ²¹⁸Ra, and ¹⁵⁶Er

NUCLEAR STRUCTURE ^236,238U, ²¹⁸Ra, ¹⁵⁶Er; analyzed negative parity bands; deduced energy shift term characteristics.

doi: 10.1103/PhysRevLett.50.1749
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1983PE12      J.Phys.(London) G9, 1025 (1983)

L.K.Peker, S.Pearlstein, J.H.Hamilton

On the Relative Quality of the Spin Expansion and Frequency Expansion for the Description of Rotational Level Energies

NUCLEAR STRUCTURE ^150,152,154Nd, ^{156,158,160,162,164}Dy, ^230,232Th, ^{232,234,236,238}U, ^244,246,248Cm, ^{158,160,162,164,166,168,170}Er, ^{161,168,170,172,174,176,178,180,182}Hf, ^{238,240,242,244}Pu; analyzed ground state rotational band energy expansion; deduced convergence rate dependence on structure.

doi: 10.1088/0305-4616/9/9/008
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1983PE16      Nucl.Data Sheets 38, 87 (1983)

L.K.Peker

Nuclear Data Sheets for A = 137

COMPILATION ¹³⁷Te, ¹³⁷I, ¹³⁷Xe, ¹³⁷Cs, ¹³⁷Ba, ¹³⁷La, ¹³⁷Ce, ¹³⁷Pr, ¹³⁷Nd, ¹³⁷Pm, ¹³⁷Sm; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(83)80092-1
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1982FI06      Phys.Rev. C26, 290 (1982)

C.A.Fields, K.H.Hicks, R.A.Ristinen, F.W.N.de Boer, L.K.Peker, P.M.Walker

Interacting Negative-Parity Bands in ¹⁶⁴Er

NUCLEAR REACTIONS ¹⁶²Dy(α, 2n), E=24 MeV; measured Eγ, Iγ(θ, t), γγ-coin. ¹⁶⁴Er deduced levels, J, π, K, configurations, band structure. Band mixing analysis.

doi: 10.1103/PhysRevC.26.290
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1982FI15      Nucl.Phys. A389, 218 (1982)

C.A.Fields, K.H.Hicks, R.A.Ristinen, F.W.N.De Boer, P.M.Walker, J.Borggreen, L.K.Peker

A Study of the Rotational Side-Bands in ¹⁶²Dy

NUCLEAR REACTIONS ¹⁶⁰Gd(α, 2n), E=24, 28 MeV; measured E(γ), I(γ)(E, t, θ), γγ-coin, ICC. ¹⁶²Dy deduced levels, K, J, π. Enriched targets, Ge(Li), hyperpure Ge detectors, mini-orange spectrometer. Two-quasiparticle plus rotor analysis.

doi: 10.1016/0375-9474(82)90517-6
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1982PA23      Phys.Rev. C26, 2178 (1982)

P.P.Parekh, L.K.Peker, S.Katcoff, E.-M.Franz

Decay of 61.9-Min ²⁴⁰Np High-Spin Isomer

RADIOACTIVITY ^240mNp(β^-) [from ²³⁸U(α, np), ²⁴⁴Pu(n, 4np)]; measured Eγ, Iγ, T_1/2; deduced log ft. ²⁴⁰Pu deduced levels, J, π, K, band structure. Radiochemical separation, Ge(Li), 4π-β detectors.

doi: 10.1103/PhysRevC.26.2178
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1982PE04      Phys.Lett. 110B, 99 (1982)

L.K.Peker, J.H.Hamilton, J.O.Rasmussen

Nuclear Shapes and the Configuration (i_13/2, h_9/2) in A ≈ 150 Nuclei

NUCLEAR STRUCTURE ^148,150,152Gd, ^149,151Tb, ^150,152Dy; analyzed level schemes; deduced nuclear shapes.

doi: 10.1016/0370-2693(82)91013-9
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1982PE12      Nucl.Data Sheets 36, 289 (1982)

L.K.Peker

Nuclear Data Sheets for A = 138

COMPILATION ¹³⁸Te, ¹³⁸I, ¹³⁸Xe, ¹³⁸Cs, ¹³⁸Ba, ¹³⁸La, ¹³⁸Ce, ¹³⁸Pr, ¹³⁸Nd, ¹³⁸Pm, ¹³⁸Sm, ¹³⁸Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(82)80053-7
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1981DE03      Phys.Rev. C23, 213 (1981); Erratum Phys.Rev. C23, 2380 (1981)

A.P.de Lima, A.V.Ramayya, J.H.Hamilton, B.Van Nooijen, R.M.Ronningen, H.Kawakami, R.B.Piercey, E.de Lima, R.L.Robinson, H.J.Kim, L.K.Peker, F.A.Rickey, R.Popli, A.J.Caffrey, J.C.Wells

Multiple Band Structures in ⁶⁸Ge

NUCLEAR REACTIONS ⁵⁸Ni(¹²C, 2p), E=39 MeV; ⁶³Cu(⁷Li, 2n), E=18 MeV; ⁵²Cr(¹⁹F, 2np), E=50 MeV; measured Eγ, Iγ, γ(θ), γγ(θ), oriented nuclei, DSA, linear polarization. ⁶⁸Ge deduced levels, J, π, δ, T_1/2, rotational band structure. Interacting boson, rotation-aligned models.

doi: 10.1103/PhysRevC.23.213
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1981FR07      Phys.Rev. C23, 2234 (1981)

E-M.Franz, S.Katcoff, P.P.Parekh, L.K.Peker

Identification and Decay of New High-Spin Isomer: 5.5-min ²⁴²Np

RADIOACTIVITY ²⁴²Np [from ²⁴⁴Pu(n, 2np), ²⁴²Pu(n, p), E=thermal]; measured Eγ, Iγ, T_1/2; deduced Eβ, log ft. ²⁴²Pu deduced levels, J, π, Nilsson assignment, γ-branching.

doi: 10.1103/PhysRevC.23.2234
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1981HS02      Phys.Rev. C23, 1217 (1981)

H.-C.Hseuh, E.-M.Franz, P.E.Haustein, S.Katcoff, L.K.Peker

Decay of 14.1-h ²⁴⁰U and 7.22-min ^240mNp

RADIOACTIVITY ²⁴⁰U, ^240mNp [from ²⁴⁴Pu(α-decay) → ²⁴⁰U(β-decay), radiochemical separation]; measured Eγ, Iγ, T_1/2; deduced log ft, Iβ. ²⁴⁰Np, ²⁴⁰Pu deduced levels, J, π, Nilsson assignments.

doi: 10.1103/PhysRevC.23.1217
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1981PA20      Phys.Rev. C24, 2240 (1981); Erratum Phys.Rev. C25, 2137 (1982)

P.P.Parekh, E.-M.Franz, S.Katcoff, L.K.Peker

Decay of 13.9-min ²⁴¹Np

RADIOACTIVITY ²⁴¹Np [from ²³⁸U(α, p), E=32 MeV, ²⁴⁴Pu(n, 3np), E=30-160 MeV]; measured Eγ, Iγ, T_1/2; deduced Iβ, log ft. ²⁴¹Pu deduced levels, J, π, γ-branching. 4πβ, Ge(Li) detectors.

doi: 10.1103/PhysRevC.24.2240
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1981PE04      Nucl.Data Sheets 32, 1 (1981)

L.K.Peker

Nuclear Data Sheets for A = 139

COMPILATION ¹³⁹I, ¹³⁹Xe, ¹³⁹Cs, ¹³⁹Ba, ¹³⁹La, ¹³⁹Ce, ¹³⁹Pr, ¹³⁹Nd, ¹³⁹Sm, ¹³⁹Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(81)80047-6
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1981PE05      Phys.Lett. 100B, 281 (1981)

L.K.Peker, S.Pearlstein, J.H.Hamilton

On the Properties of the Extended Ground Rotational Bands in Actinide Even-Even Nuclei

NUCLEAR STRUCTURE ²³²Th, ^{232,234,236,238}U, ²⁴⁸Cm; calculated yrast levels; ²³²Th, ²³⁸U, ²⁴⁸Cm; calculated Eγ for I → I-2. Variable moment of inertia model, two term angular velocity expansion.

doi: 10.1016/0370-2693(81)90087-3
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1981PE09      Phys.Rev. C24, 1336 (1981)

L.K.Peker, J.H.Hamilton, J.O.Rasmussen

Octupole Vibration Origin of the Low K(π) = 0^-; I = 1^- States in the A ≥ 218 Rn, Ra, and Th Even-Even Nuclei

NUCLEAR STRUCTURE ^218,220,222Rn, ^222,224,226Ra, ^{228,230,232,234}Th; analyzed levels; deduced strong Coriolis coupling effects. ^218,220,222Rn levels deduced J, π.

doi: 10.1103/PhysRevC.24.1336
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1980GI04      Phys.Rev. C21, 2041 (1980)

J.Gilat, S.Katcoff, L.K.Peker

Levels of ²³⁰Ac and ²³⁰Th Populated by Decay of ²³⁰Ra and ²³⁰Ac

RADIOACTIVITY ²³⁰Ra, ²³⁰Ac [from ²³²Th(n, n2p)²³⁰Ra(β-decay)]; measured Eγ, Iγ, T_1/2, Eβ; deduced Qβ, Iβ, log ft. ²³⁰Ac, ²³⁰Th deduced levels, γ-branching, J, π, Nilsson assignments. Chemical separation, Ge(Li), plastic detectors.

doi: 10.1103/PhysRevC.21.2041
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1980KA08      Phys.Rev. C21, 1311 (1980)

H.Kawakami, A.P.de Lima, R.M.Ronningen, A.V.Ramayya, J.H.Hamilton, R.L.Robinson, H.J.Kim, L.K.Peker

High-Spin States in ⁶⁵Ga and Possible Triaxial Structure

NUCLEAR REACTIONS ⁵⁸Ni(¹²C, αp), E=39 MeV; ⁶⁰Ni(⁷Li, 2n), E=18-21 MeV; measured Iγ, Eγ, Iγ(θ), γγ-coin, γγ(θ) oriented nuclei. ⁶⁵Ga deduced levels, J, π, δ.

doi: 10.1103/PhysRevC.21.1311
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1980LU08      Nucl.Phys. A344, 283 (1980)

J.Ludziejewski, J.Bron, W.H.A.Hesselink, A.W.B.Kalshoven, L.K.Peker, A. Van Poelgeest, H.Verheul, M.J.A. De Voigt

Level Structure in Doubly Odd ¹⁰⁴Ag

NUCLEAR REACTIONS ¹⁰³Rh(α, 3nγ), E=33-55 MeV; measured Eγ, Iγ, γ(θ), αγ(t), γγ(t), I(ce). ¹⁰⁴Ag deduced levels, J, π, T_1/2, B(λ). Ge(Li) detector, mini-orange spectrometer. Coriolis coupling, Nilsson model.

doi: 10.1016/0375-9474(80)90678-8
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1980PE03      Nucl.Data Sheets 29, 587 (1980)

L.K.Peker

Nuclear Data Sheets for A = 112

COMPILATION ¹¹²Ru, ¹¹²Rh, ¹¹²Pd, ¹¹²Ag, ¹¹²Cd, ¹¹²In, ¹¹²Sn, ¹¹²Sb, ¹¹²Te, ¹¹²I, ¹¹²Xe; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(80)80040-8
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1980PE06      Phys.Lett. 91B, 365 (1980)

L.K.Peker, J.O.Rasmussen, J.H.Hamilton

Particle Angular Momentum Alignment Effects in Deformed Nuclei

NUCLEAR STRUCTURE ¹⁵⁸Dy, ^160,164Er; analyzed data; deduced aligned angular momentum quantity.

doi: 10.1016/0370-2693(80)90997-1
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1979DE12      Phys.Lett. 83B, 43 (1979)

A.P.de Lima, J.H.Hamilton, A.V.Ramayya, B.van Nooijen, R.M.Ronningen, H.Kawakami, R.B.Piercey, E.de Lima, R.L.Robinson, H.J.Kim, W.K.Tuttle, L.K.Peker, F.A.Rickey, R.Popli

Evidence for Ground and Both Neutron and Proton Rotational Aligned Bands in ⁶⁸Ge

NUCLEAR REACTIONS ⁵⁸Ni(¹²C, 2pγ), E=39 MeV; measured γ(θ), γγ-coin, T_1/2. ⁶³Cu(⁷Li, 2nγ), E=26 MeV; measured γ(θ). ⁶⁸Ge deduced levels, branching of yrast band. Rotational aligned model calculations.

doi: 10.1016/0370-2693(79)90884-0
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1979HA26      Phys.Rev. C19, 2332 (1979)

P.E.Haustein, H-C.Hseuh, R.L.Klobuchar, E-M.Franz, S.Katcoff, L.K.Peker

Identification and Decay of ²⁴²U and ²⁴²Np

RADIOACTIVITY ²⁴²U(β^-) [from ²⁴⁴Pu(n, 2pn), E=30-160 MeV]; measured T_1/2, Eγ, Iγ; deduced Eβ, Iβ, log ft. ²⁴²Np deduced levels, J, π, Nilsson assignments. ²⁴²Np(β^-); measured T_1/2, Eγ, Iγ, Eβ, Iβ; deduced log ft. ²⁴²Pu deduced levels, J, π, Nilsson assignments.

doi: 10.1103/PhysRevC.19.2332
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1979KA05      Nucl.Phys. A315, 334 (1979)

A.W.B.Kalshoven, W.H.A.Hesselink, T.J.Ketel, J.Ludziejewski, L.K.Peker, J.J.van Ruyven, H.Verheul

High Spin States in ¹⁰⁵Ag

NUCLEAR REACTIONS ¹⁰³Rh(α, 2nγ), E=17-32 MeV; measured Eγ, Iγ, γ(θ), linear polarization, αγ(t), γγ(t), I(ce), μ. ¹⁰⁵Ag deduced levels, J, π, T_1/2, B(λ). Ge(Li), Si(Li) detectors.

doi: 10.1016/0375-9474(79)90615-8
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1979PE02      Nucl.Data Sheets 26, 473 (1979)

L.K.Peker

Nuclear Data Sheets for A = 136

COMPILATION ¹³⁶Sb, ¹³⁶Te, ¹³⁶I, ¹³⁶Xe, ¹³⁶Cs, ¹³⁶Ba, ¹³⁶La, ¹³⁶Ce, ¹³⁶Pr, ¹³⁶Nd, ¹³⁶Pm; compiled, evaluated structure data.

doi: 10.1016/0090-3752(79)80023-X
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1979PE07      Nucl.Data Sheets 28, 267 (1979)

L.K.Peker

Nuclear Data Sheets for A = 140

COMPILATION ¹⁴⁰I, ¹⁴⁰Xe, ¹⁴⁰Cs, ¹⁴⁰Ba, ¹⁴⁰La, ¹⁴⁰Ce, ¹⁴⁰Pr, ¹⁴⁰Nd, ¹⁴⁰Pm, ¹⁴⁰Sm, ¹⁴⁰Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(79)80054-X
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1979PE10      Phys.Rev. C20, 855 (1979)

L.K.Peker, J.H.Hamilton

Possible Triaxial Shape of Even-A Mercury Nuclei and a Phase Transition between ≤ ¹⁹⁶Hg and ^198,200Hg

NUCLEAR STRUCTURE ^{192,194,196,198,200}Hg; calculated energy levels, B(E2). Triaxial rotor model.

doi: 10.1103/PhysRevC.20.855
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1979PE11      J.Phys.(London) G5, L165 (1979)

L.K.Peker, J.H.Hamilton

Are the E1 Transitions from Octupole Vibrational States Collective or Particle Transitions (Question)

NUCLEAR STRUCTURE ^74,76,78Se, ^{110,112,114,116}Cd, ^234,236,238U, ^238,240,242Pu; analyzed data on E1 transitions from octupole states; deduced microscopic structure of levels.

doi: 10.1088/0305-4616/5/10/004
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1979PE13      Z.Phys. A292, 271 (1979)

L.K.Peker, J.O.Rasmussen, J.H.Hamilton

Bandcrossing in K ≠ 0 Bands

NUCLEAR STRUCTURE ¹⁵⁶Er, ¹⁶⁵Tm, ¹⁵⁷Ho; discussed even-odd effects in crossing of K ≠ 0 bands.

doi: 10.1007/BF01547472
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1979PE15      J.Phys.(London) G5, L203 (1979)

L.K.Peker, J.H.Hamilton

Is There Evidence for Rotation Along the Axis of Symmetry in Transitional Nuclei (Question)

NUCLEAR STRUCTURE ¹⁵²Dy, ¹⁵⁴Er; calculated spin dependence of totally random level sequence. Computer generated bands for I > 14.

doi: 10.1088/0305-4616/5/2/007
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1979RA34      Nucl.Phys. A332, 82 (1979)

J.O.Rasmussen, M.W.Guidry, T.E.Ward, C.Castaneda, L.K.Peker, E.Leber, J.H.Hamilton

Rotational Energy Expressions and Least-Squares Fitting of Backbenders and Similar Nuclei

NUCLEAR STRUCTURE ^130,132,134Ce, ^{158,160,162,164}Er, ¹⁵⁸Dy, ^164,166,168Yb, ¹⁷⁰W, ¹⁸²Os; calculated rotational energies. Yrast, yrare states, band mixing, pairing interaction, Coriolis coupling.

doi: 10.1016/0375-9474(79)90096-4
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1979TU02      Atomkernenergie 33, 222 (1979)

J.K.Tuli, L.K.Peker

Recommended Normalization in Ba 140 Decay

RADIOACTIVITY ¹⁴⁰Ba; evaluated Iγ. ¹⁴⁰La transition deduced absolute Iγ.

1978DE02      Z.Phys. A284, 267 (1978)

F.W.N.de Boer, L.K.Peker, P.Koldewijn, J.Konijn

Crossing of Negative Parity Bands in Even-Even Nuclei Around A ≈ 150

NUCLEAR STRUCTURE ¹⁵⁰Sm, ¹⁵²Gd, ¹⁵⁴Dy, ¹⁵⁶Er; calculated band crossing.

1978KO03      Z.Phys. A284, 233 (1978)

J.Konijn, F.W.N.de Boer, P.Koldewijn, R.Beetz, L.K.Peker

Aligned Rotation of Octupole-Vibrational States in Deformed Nuclei

NUCLEAR STRUCTURE ¹⁵⁴Gd, ¹⁵⁶Dy, ¹⁶²Er, ²³⁸U; calculated levels. VMI model.

doi: 10.1007/BF01411333
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1978PE01      Z.Phys. A285, 67 (1978)

L.K.Peker, F.W.N.de Boer, J.Konijn

On the Nature of the Superband in ¹⁵⁶Dy

NUCLEAR STRUCTURE ¹⁵⁶Dy; analyzed band structure.

doi: 10.1007/BF01410226
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1978PE02      Phys.Rev.Lett. 40, 744 (1978)

L.K.Peker, J.H.Hamilton

Double Crosing of the Ground Rotational Band and Super Band

NUCLEAR STRUCTURE ¹⁵⁸Er; calculated double band crossing.

doi: 10.1103/PhysRevLett.40.744
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1977PE14      Z.Phys. A283, 121 (1977)

L.K.Peker, F.W.N.de Boer, J.Konijn

An Anomalous Behaviour of the Gamma Band in ¹⁵⁶Dy

NUCLEAR STRUCTURE ¹⁵⁶Dy; analyzed data; deduced anomalous behaviour in γ-band.

doi: 10.1007/BF01434072
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1975IV04      Izv.Akad.Nauk SSSR, Ser.Fiz. 39, 1695 (1975); Bull.Acad.Sci.USSR, Phys.Ser. 39, No.8, 108 (1975)

M.A.Ivanov, I.K.Lemberg, A.S.Mishin, L.K.Peker, I.N.Chugunov

Lifetimes of Excited States of ⁶⁰Ni Excited in Heavy-Ion Reactions

NUCLEAR REACTIONS ⁵¹V(¹²C, 2np), E=32-42 MeV; measured Eγ, γγ, γ(t). ⁶⁰Ni deduced levels, J, π, T_1/2, γ-multipolarity, B(E2).

1974PE11      Izv.Akad.Nauk SSSR, Ser.Fiz. 38, 807 (1974); Bull.Acad.Sci.USSR, Phys.Ser. 38, No.4, 326 (1974)

L.K.Peker

Coexistence of Spherical and Deformed States in ⁵¹Cr Nucleus

NUCLEAR STRUCTURE ⁵¹Cr; calculated spherical, deformed states.

1974PE17      Izv.Akad.Nauk SSSR, Ser.Fiz. 38, 2633 (1974); Bull.Acad.Sci.USSR, Phys.Ser. 38, No.12, 150 (1974)

L.K.Peker, V.M.Sigalov

Coexistence of Spherical and Deformed States in Nuclei with Odd Mass Numbers

NUCLEAR STRUCTURE ¹⁵³Tb, ¹⁵⁵Ho, ¹⁵¹Sm; analyzed data; deduced β.

1974PE18      Izv.Akad.Nauk SSSR, Ser.Fiz. 38, 2119 (1974); Bull.Acad.Sci.USSR, Phys.Ser. 38, No.10, 90 (1974)

L.K.Peker, V.M.Sigalov

The Alaga Model and the Structure of the Spherical States of Odd-Neutron Nuclei with A of 145-153

NUCLEAR STRUCTURE ^{143,145,147,149}Nd, ^{145,147,149,151}Sm levels calculated μ.

1974PE19      Nucl.Data Sheets 12, 343 (1974)

L.K.Peker, V.M.Sigalov, Y.I.Kharitonov

Nuclear Data Sheets for A = 140

COMPILATION ¹⁴⁰I, ¹⁴⁰Xe, ¹⁴⁰Cs, ¹⁴⁰Ba, ¹⁴⁰La, ¹⁴⁰Ce, ¹⁴⁰Pr, ¹⁴⁰Nd, ¹⁴⁰Pm, ¹⁴⁰Sm, ¹⁴⁰Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(74)80031-1
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1973AL16      Izv.Akad.Nauk SSSR, Ser.Fiz. 37, 965 (1973); Bull.Acad.Sci.USSR, Phys.Ser. 37, No.5, 48 (1974)

A.V.Aldushchenkov, N.A.Voinova, V.G.Dubro, A.I.Egorov, Y.V.Kalinichev, D.M.Kaminker, L.K.Peker, A.G.Sergeev

Three-Particle and 'Anomalous' Excited States of ¹⁰¹Tc

RADIOACTIVITY ¹⁰¹Mo [from ¹⁰⁰Mo(n, γ)]; measured Eγ, Iγ; deduced log ft. ¹⁰¹Ru, ¹⁰¹Tc transitions measured ICC. ¹⁰¹Tc deduced levels, J, π.

1973PE17      Izv.Akad.Nauk SSSR, Ser.Fiz. 37, 1711 (1973); Bull.Acad.Sci.USSR, Phys.Ser. 37, No.8, 126 (1974)

L.K.Peker, E.I.Volmyanskii, B.F.Gerasimenko, V.G.Dubro

Interpretation of Some Multiparticle Levels Excited during the Decay of the ¹¹⁷Sb and ¹⁰⁵Cd Isomers

NUCLEAR STRUCTURE ¹¹⁷Sb, ¹⁰⁵Cd deduced level configurations.

1973RA22      Phys.Lett. 44B, 462 (1973)

Y.N.Rakivnenko, A.P.Klyucharev, V.A.Lutsik, E.A.Skakun, I.A.Romaniy, K.-H.Kaun, W.Neubert, W.Schulze, F.Stary, L.K.Peker, E.I.Volmyanski

A High-Spin Isomer in ²⁰⁴Bi

NUCLEAR REACTIONS ¹⁹⁸Pt(¹¹B, 5nγ), ²⁰³Tl(α, 3nγ); measured Eγ, Iγ(t), I(ce). Deduced ICC. ²⁰⁴Bi deduced level, T_1/2, γ-multipolarity.

doi: 10.1016/0370-2693(73)90335-3
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1972AR36      Izv.Akad.Nauk SSSR, Ser.Fiz. 36, 2074 (1972); Bull.Acad.Sci.USSR, Phys.Ser. 36, 1826 (1973)

R.Arlt, V.V.Kuznetsov, W.Neubert, L.K.Peker, A.V.Potempa, U.Hagemann

Structure of the Isomer States of ^148,150,152Tb and Two-Particle Levels of ^148,150,152Cd and ^146,148Sm

RADIOACTIVITY ^148,150,152Tb; measured Eγ, Iγ; deduced levels, J, π, configurations. ^146,148Sm, ^148,150,152Gd, ¹⁵⁴Dy deduced 2-particle states.